William Willis, M.D.
NPI 1518946946 · Family Medicine Physician · Jackson, TN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Willis, M.D. is a Family Medicine Physician provider in Jackson, TN (NPI 1518946946).
Provider details
- NPI number
- 1518946946
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD26833 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
796 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 302 | $160 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 231 | $7 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 151 | $111 |
| Critical Care, First 30-74 Minutes99291 | 87 | $194 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 25 | $65 |
Typical Medicare-allowed amounts for these services range $7–$194 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 49 | 46 |
| Ondansetronbrand: Ondansetron Odt | 37 | 37 |
| Ibuprofen | 30 | 30 |
| Cyclobenzaprine Hcl | 21 | 21 |
| Cephalexin | 17 | 17 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 17 | 17 |
| Doxycycline Hyclate | 12 | 12 |
Practice location
Mailing address
Additional practice locations (1)
- 511 E Main StBrownsville, TN 38012-4113Phone: (731) 267-7732
Registry dates
- Enumerated
- 2006-01-13
- Last updated
- 2018-07-24
Frequently asked questions
- What is William Willis's NPI number?
- William Willis's National Provider Identifier (NPI) is 1518946946, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Willis's specialty?
- William Willis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Willis located?
- William Willis's practice location on file with NPPES is 708 W Forest Ave, Jackson, TN 38301.
- What is William Willis's phone number?
- The practice phone number listed in the NPPES registry for William Willis is (731) 660-8759.
- Does William Willis accept Medicare?
- William Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Willis's NPI active?
- Yes — William Willis's NPI (1518946946) is active in the NPPES registry as of the last update on 2018-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.